Table P-X
External Similitude Centers.
Points available at the Kimberling's Encyclopedia ETC.
The ETC version: The 10000 points version of 2016.
The "Discoverer" database version: October 2013.
Last update: 2016-05-15

      Role     Kimberling Notation  
  1     External Center of Similitude of the Circumcircle of Triangle ABC and the Circumcircle of the Inner Yff Triangle     X(1)   Incenter  
  2     External Center of Similitude of the Circumcircle of Triangle ABC and the Nine-Point Circle of the Inner Yff Triangle     X(388)    
  3     External Center of Similitude of the Circumcircle of Triangle ABC and the Excentral Circle of the Inner Yff Triangle     X(1)   Incenter  
  4     External Center of Similitude of the Circumcircle of Triangle ABC and the Antimedial Circle of the Inner Yff Triangle     X(4299)    
  5     External Center of Similitude of the Incircle of Triangle ABC and the Circumcircle of the Inner Yff Triangle     X(3)   Circumcenter  
  6     External Center of Similitude of the Incircle of Triangle ABC and the Nine-Point Circle of the Inner Yff Triangle     X(12)   Feuerbach Perspector  
  7     External Center of Similitude of the Incircle of Triangle ABC and the Excentral Circle of the Inner Yff Triangle     X(46)   Prespector of the Excentral Triangle and the Orthic Triangle  
  8     External Center of Similitude of the Incircle of Triangle ABC and the Antimedial Circle of the Inner Yff Triangle     X(1479)   Center of the Outer Johnson-Yff Circle  
  9     External Center of Similitude of the Incentral Circle of Triangle ABC and the Incentral Circle of the Inner Yff Triangle     X(1)   Incenter  
  10     External Center of Similitude of the Nine-Point Circle of Triangle ABC and the Circumcircle of the Inner Yff Triangle     X(1479)   Center of the Outer Johnson-Yff Circle  
  11     External Center of Similitude of the Nine-Point Circle of Triangle ABC and the Nine-Point Circle of the Inner Yff Triangle     X(1)   Incenter  
  12     External Center of Similitude of the Nine-Point Circle of Triangle ABC and the Antimedial Circle of the Inner Yff Triangle     X(499)    
  13     External Center of Similitude of the Symmedial Circle of Triangle ABC and the Symmedial Circle of the Inner Yff Triangle     X(1)   Incenter  
  14     External Center of Similitude of the Extouch Circle of Triangle ABC and the Extouch Circle of the Inner Yff Triangle     X(1)   Incenter  
  15     External Center of Similitude of the Excentral Circle of Triangle ABC and the Circumcircle of the Inner Yff Triangle     X(1)   Incenter  
  16     External Center of Similitude of the Excentral Circle of Triangle ABC and the Nine-Point Circle of the Inner Yff Triangle     X(5290)    
  17     External Center of Similitude of the Excentral Circle of Triangle ABC and the Excentral Circle of the Inner Yff Triangle     X(1)   Incenter  
  18     External Center of Similitude of the Excentral Circle of Triangle ABC and the Antimedial Circle of the Inner Yff Triangle     X(1770)    
  19     External Center of Similitude of the Antimedial Circle of Triangle ABC and the Circumcircle of the Inner Yff Triangle     X(4294)    
  20     External Center of Similitude of the Antimedial Circle of Triangle ABC and the Antimedial Circle of the Inner Yff Triangle     X(1)   Incenter  
  21     External Center of Similitude of the Tangential Circle of Triangle ABC and the Tangential Circle of the Inner Yff Triangle     X(1)   Incenter  
  22     External Center of Similitude of the Spieker Circle of Triangle ABC and the Circumcircle of the Inner Yff Triangle     X(5687)    
  23     External Center of Similitude of the Spieker Circle of Triangle ABC and the Spieker Circle of the Inner Yff Triangle     X(1)   Incenter  
  24     External Center of Similitude of the Stevanovic Circle of Triangle ABC and the Stevanovic Circle of the Inner Yff Triangle     X(1)   Incenter  
  25     External Center of Similitude of the Sine-Triple-Angle Circle of Triangle ABC and the Sine-Triple-Angle Circle of the Inner Yff Triangle     X(1)   Incenter  
  26     External Center of Similitude of the Brocard Circle of Triangle ABC and the Brocard Circle of the Inner Yff Triangle     X(1)   Incenter  
  27     External Center of Similitude of the Second Brocard Circle of Triangle ABC and the Second Brocard Circle of the Inner Yff Triangle     X(1)   Incenter  
  28     External Center of Similitude of the Orthocentroidal Circle of Triangle ABC and the Orthocentroidal Circle of the Inner Yff Triangle     X(1)   Incenter  
  29     External Center of Similitude of the Moses Circle of Triangle ABC and the Circumcircle of the Inner Yff Triangle     X(2241)    
  30     External Center of Similitude of the Moses Circle of Triangle ABC and the Antimedial Circle of the Inner Yff Triangle     X(9597)    
  31     External Center of Similitude of the Moses Circle of Triangle ABC and the Moses Circle of the Inner Yff Triangle     X(1)   Incenter  
  32     External Center of Similitude of the Half-Moses Circle of Triangle ABC and the Half-Moses Circle of the Inner Yff Triangle     X(1)   Incenter  
  33     External Center of Similitude of the Parry Circle of Triangle ABC and the Parry Circle of the Inner Yff Triangle     X(1)   Incenter  
  34     External Center of Similitude of the Lester Circle of Triangle ABC and the Lester Circle of the Inner Yff Triangle     X(1)   Incenter  
  35     External Center of Similitude of the Inner Johnson-Yff Circle of Triangle ABC and the Nine-Point Circle of the Inner Yff Triangle     X(55)   Internal Center of Similitude of Circumcircle and Incircle  
  36     External Center of Similitude of the Inner Johnson-Yff Circle of Triangle ABC and the Tangential Circle of the Inner Yff Triangle     X(55)   Internal Center of Similitude of Circumcircle and Incircle  
  37     External Center of Similitude of the Inner Johnson-Yff Circle of Triangle ABC and the Inner Johnson-Yff Circle of the Inner Yff Triangle     X(1)   Incenter  
  38     External Center of Similitude of the Outer Johnson-Yff Circle of Triangle ABC and the Circumcircle of the Inner Yff Triangle     X(5)   Nine-Point Center  
  39     External Center of Similitude of the Outer Johnson-Yff Circle of Triangle ABC and the Outer Johnson-Yff Circle of the Inner Yff Triangle     X(1)   Incenter  
  40     External Center of Similitude of the Lemoine Circle of Triangle ABC and the Lemoine Circle of the Inner Yff Triangle     X(1)   Incenter  
  41     External Center of Similitude of the Gallatly Circle of Triangle ABC and the Gallatly Circle of the Inner Yff Triangle     X(1)   Incenter  
  42     External Center of Similitude of the Kenmotu Circle of Triangle ABC and the Kenmotu Circle of the Inner Yff Triangle     X(1)   Incenter  
  43     External Center of Similitude of the Cosine Circle of Triangle ABC and the Circumcircle of the Inner Yff Triangle     X(5414)    
  44     External Center of Similitude of the Cosine Circle of Triangle ABC and the Cosine Circle of the Inner Yff Triangle     X(1)   Incenter  
  45     External Center of Similitude of the Apollonius Circle of Triangle ABC and the Apollonius Circle of the Inner Yff Triangle     X(1)   Incenter  
  46     External Center of Similitude of the Taylor Circle of Triangle ABC and the Taylor Circle of the Inner Yff Triangle     X(1)   Incenter